banan-os/kernel/include/kernel/TTY.h

53 lines
1.1 KiB
C++

#pragma once
#include <kernel/VESA.h>
#include <kernel/Serial.h>
class TTY
{
public:
TTY();
void Clear();
void PutChar(char ch);
void Write(const char* data, size_t size);
void WriteString(const char* data);
void SetCursorPos(int x, int y);
static void PutCharCurrent(char ch);
private:
void ResetAnsiEscape();
void HandleAnsiSGR();
void HandleAnsiEscape(uint16_t ch);
void PutCharAt(uint16_t ch, size_t x, size_t y);
inline void RenderFromBuffer(size_t x, size_t y)
{
const auto& cell = m_buffer[y * m_width + x];
VESA::PutEntryAt(cell.character, x, y, cell.foreground, cell.background);
}
private:
struct Cell
{
VESA::Color foreground = VESA::Color::BRIGHT_WHITE;
VESA::Color background = VESA::Color::BLACK;
uint16_t character = ' ';
};
struct AnsiState
{
uint8_t mode = '\0';
int32_t index = 0;
int32_t nums[2] = { -1, -1 };
};
uint32_t m_width { 0 };
uint32_t m_height { 0 };
uint32_t m_row { 0 };
uint32_t m_column { 0 };
VESA::Color m_foreground { VESA::Color::BRIGHT_WHITE };
VESA::Color m_background { VESA::Color::BLACK };
Cell* m_buffer { nullptr };
AnsiState m_ansi_state;
};